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Passive house doors and windows can adapt to climate characteristics and natural conditions, have stronger thermal insulation and air tightness, minimize the demand for building heating and cooling, and provide a comfortable indoor environment with less energy consumption.
Q: What is the standard for the wall thickness of aluminum alloy door and window profiles?
A: The wall thickness of aluminum alloy window profiles for outward opening windows shall not be less than 1.8mm, and the wall thickness of inward opening window profiles shall not be less than 1.4mm. High-rise buildings can choose to increase the thickness of profiles; the wall thickness of the main stress-bearing parts of heavy-duty sliding door profiles shall not be less than 2.0mm, and the thickness of the outward swing door profile shall not be less than 2.2mm; the thickness of the inward swing door profile shall not be less than 2.0mm. This is a mandatory requirement of the 2020 version of the national standard GB/T4878-2020. Single doors and windows exceeding 3-4 square meters can be thickened, and columns can be added to increase their physical strength if they are too large.
Q: What are the advantages of aluminum alloy doors and windows? What are the surface treatments?
A: The advantages of aluminum alloy doors and windows are that they will not oxidize or rust, and are strong and durable; the anti-corrosion treatments on the surface of aluminum alloy include porcelain coating, electrophoresis, powder coating, and PU wood grain coating. Among them, fluorocarbon paint has a better effect, can be combined with the profile, become a part of the profile, and is a super anti-corrosion outer layer.
The professional testing center has 11 high-standard laboratories including chemical analysis room, sample preparation room, balance room, metallographic laboratory, mechanical properties laboratory, physical properties laboratory, cross-section measurement room, spectrum laboratory, salt spray laboratory, blasting room and aging laboratory. Key instruments are introduced from the United States, Germany, Israel and other countries, equipped with world-leading testing equipment and instruments such as ultraviolet accelerated weathering tester, direct reading spectrometer, salt spray test chamber, metallographic microscope, xenon lamp aging machine, cross-section measuring instrument, electronic universal testing machine, spray testing machine and flaw detector, which can quickly and accurately complete the testing of various physical and chemical indicators. According to the composition of system doors and windows, the company has formulated a complete monitoring system from aluminum profiles, accessories to whole windows.
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